单片机串口队列发送和接收问题

只看该作者 · 2016-10-27 15:21

#define UART_RX_BUFFER_SIZE 32 /* 1,2,4,8,16,32,64,128 or 256 bytes */

#define UART_RX_BUFFER_MASK ( UART_RX_BUFFER_SIZE - 1 ) //127

#define UART_TX_BUFFER_SIZE 32 /* 1,2,4,8,16,32,64,128 or 256 bytes */

#define UART_TX_BUFFER_MASK ( UART_TX_BUFFER_SIZE - 1 ) //127

 PIC_Uart.UART_TxBuf[PICUart_TxHead] =0x68; 

struct StructUart{

  unsigned char UART_RxBuf[UART_RX_BUFFER_SIZE];

  unsigned char UART_RxHead;

  unsigned char UART_RxTail;

  unsigned char UART_TxBuf[UART_TX_BUFFER_SIZE];

  unsigned char UART_TxHead;

  unsigned char UART_TxTail;

};

复制

void DATApack_senddata(unsigned char Pdata[],unsigned char con_word,unsigned char num)

{

   unsigned char i;

   PIC_Uart.UART_TxBuf[PICUart_TxHead] =0x68;  

   PIC_Uart.UART_TxBuf[PICUart_TxHead] =0x00;

   PIC_Uart.UART_TxBuf[PICUart_TxHead] =Dever_ID;

   PIC_Uart.UART_TxBuf[PICUart_TxHead] =con_word; 

   PIC_Uart.UART_TxBuf[PICUart_TxHead]=num;

   for(i=0;i<num;i++)

     PIC_Uart.UART_TxBuf[PICUart_TxHead]=Pdata[i];

   PIC_Uart.UART_TxBuf[PICUart_TxHead]=Parity_bit(PIC_Uart.UART_TxBuf+1,4+num);

   PIC_Uart.UART_TxBuf[PICUart_TxHead]=0x16;

   TXEN=1;//发送使能位

}